If you are getting stringing on the eifel tower just slow down the print. Make the decision that you can wait a few more hours. I recommend layer height .2mm and 50mm/sec max to avoid stringing. And keep the temp low - no higher than 220C. 200C might be better. And at those cold temps I might go down to 30mm/sec. If layer height is .1mm then you can go twice as fast of course (60-100mm/sec) - the whole issue is keeping the pressure in the nozzle low so when it stops extruding you don't get leakage/stringing.
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msurunner 2
Yeah, the Eiffel Tower requires your retraction to be dialed in well. Print a couple hollow pyramid calibration cubes/pyramids to get your retraction where you want it before attempting unless you are extremely confident and ambitious! Yoda is a fun one to print that doesn't require a lot of work to print well aside from getting your temp settings close (important for retraction as well) and it can be printed without infill and 3 perimeters.
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